[Bug target/55966] __atomic_fetch_* generate wrong code for HLE

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55966



--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-14 21:25:13 
UTC ---

Following testcase will expand to a cmpxchg loop:



int hle_and (int *p, int v)

{

  return __atomic_fetch_and_4 (p, v, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE);

}